<template>
  <Footer :class="prefixCls" v-if="getShowLayoutFooter" ref="footerRef">
    <div :class="`${prefixCls}__links`">
      <a @click="openWindow(SITE_URL)">{{
        t('layout.footer.onlinePreview')
      }}</a>

      <GithubFilled
        @click="openWindow(GITHUB_URL)"
        :class="`${prefixCls}__github`"
      />

      <a @click="openWindow(DOC_URL)">{{
        t('layout.footer.onlineDocument')
      }}</a>
    </div>
    <div>Copyright &copy;2020 Vben Admin</div>
  </Footer>
</template>

<script lang="ts">
import { computed, defineComponent, unref, ref } from 'vue'
import { Layout } from 'ant-design-vue'

import { GithubFilled } from '@ant-design/icons-vue'

import { DOC_URL, GITHUB_URL, SITE_URL } from '@admin/setting'
import { openWindow } from '@admin/utils'

import { useI18n } from '@admin/locale'
import { useRootSetting } from '@/hooks/setting/useRootSetting'
import { useRouter } from 'vue-router'
import { useDesign } from '@/hooks/web/useDesign'
import { useLayoutHeight } from '../content/useContentViewHeight'

export default defineComponent({
  name: 'LayoutFooter',
  components: { Footer: Layout.Footer, GithubFilled },
  setup() {
    const { t } = useI18n()
    const { getShowFooter } = useRootSetting()
    const { currentRoute } = useRouter()
    const { prefixCls } = useDesign('layout-footer')

    const footerRef = ref<ComponentRef>(null)
    const { setFooterHeight } = useLayoutHeight()

    const getShowLayoutFooter = computed(() => {
      if (unref(getShowFooter)) {
        const footerEl = unref(footerRef)?.$el
        setFooterHeight(footerEl?.offsetHeight || 0)
      } else {
        setFooterHeight(0)
      }
      return unref(getShowFooter) && !unref(currentRoute).meta?.hiddenFooter
    })

    return {
      getShowLayoutFooter,
      prefixCls,
      t,
      DOC_URL,
      GITHUB_URL,
      SITE_URL,
      openWindow,
      footerRef,
    }
  },
})
</script>
<style lang="less" scoped>
@prefix-cls: ~'@{namespace}-layout-footer';

@normal-color: rgba(0, 0, 0, 0.45);

@hover-color: rgba(0, 0, 0, 0.85);

.@{prefix-cls} {
  color: @normal-color;
  text-align: center;

  &__links {
    margin-bottom: 8px;

    a {
      color: @normal-color;

      &:hover {
        color: @hover-color;
      }
    }
  }

  &__github {
    margin: 0 30px;

    &:hover {
      color: @hover-color;
    }
  }
}
</style>
